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Upgraded architecture of TWDM-PON with type B protection for capacity and budget improvement
https://kagawa-u.repo.nii.ac.jp/records/2001097
https://kagawa-u.repo.nii.ac.jp/records/200109787ecd3bd-d616-4b5c-b2f9-f74c31270ecd
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Optics566_130723
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||||||||||||
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| 公開日 | 2025-09-02 | |||||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||||
| タイトル | Upgraded architecture of TWDM-PON with type B protection for capacity and budget improvement | |||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||||||||||||||||||
| アクセス権 | ||||||||||||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||||||||||||||
| 著者 |
小玉, 崇宏
× 小玉, 崇宏
× Nakagawa, Tomoya
× Inagaki, Mizuki
× Eguchi, Shota
× Shimada, Keiji
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| 抄録 | ||||||||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||||
| 内容記述 | The next-generation mobile fronthaul system based on technologies beyond 5G requires optical access networks with excellent disaster resistance. For passive optical networks (PONs), also known as economical optical access networks, the Type B protection method that considers disaster resistance is a practical conventional approach to address transceiver and link failure. However, the transmission capacity upgrade and effective utilization of optical power of time wavelength division multiplexing (TWDM)-based-PON with Type B protection have not been extensively studied. In this study, we intend to upgrade the architecture by applying Type B protection to a 40 Gbit/s-class TWDM-PON that uses the uplink C band/downlink L band specified by NG-PON2. To improve the downlink capacity, we have considered a bidirectional asymmetric modulation transmission system to introduce a dual-polarization quadrature phase-shift keying system for the downlink C band. The downlink coherent signal is transmitted by selecting either the primary or secondary link using the optical switch. There are no major drawbacks with either the primary or secondary link. Moreover, we have numerically and experimentally clarified the impact of improving the reception power by receiving a burst single-input multi-output in the uplink under the condition of no link failure. Additionally, we describe the bidirectional transmission feasibility of C-band asymmetric modulation under link failure and reflection. We have found that bidirectional transmission at the same wavelength is possible by allowing a specific penalty even for asymmetric symbol rate/polarization/modulation formats. A principle verification experiment revealed that SIMO reception could be improved by a 1.5 dB budget on the uplink. The method of upgrading the TWDM-PON system can be changed while effectively using NG-PON2 technology until the future coherent PON method is completely introduced. | |||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||
| 書誌情報 |
en : Optics Communications 巻 566, 発行日 2024-09-01 |
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| 出版者 | ||||||||||||||||||||||||||||||
| 出版者 | Elsevier | |||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||
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| 収録物識別子タイプ | PISSN | |||||||||||||||||||||||||||||
| 収録物識別子 | 1873-0310 | |||||||||||||||||||||||||||||
| 権利 | ||||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||
| 権利情報 | © 2024 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies. | |||||||||||||||||||||||||||||
| 著者版フラグ | ||||||||||||||||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||||||||||||||
